diff --git a/CHANGELOG-PRERELEASE.md b/CHANGELOG-PRERELEASE.md
index f3fbdf012..beb9c33bd 100644
--- a/CHANGELOG-PRERELEASE.md
+++ b/CHANGELOG-PRERELEASE.md
@@ -8,7 +8,6 @@ The format is based on [Keep a Changelog].
 
 ## [Unreleased]
 ### Added
-- Multi Pass Rendering of Last SubMesh support `#384`
 
 ### Changed
 
@@ -17,10 +16,16 @@ The format is based on [Keep a Changelog].
 ### Removed
 
 ### Fixed
-- Unclear Error with Mesh with Read/Write off `#386`
 
 ### Security
 
+## [1.4.0-rc.1] - 2023-08-27
+### Added
+- Multi Pass Rendering of Last SubMesh support [`#384`](https://github.com/anatawa12/AvatarOptimizer/pull/384)
+
+### Fixed
+- Unclear Error with Mesh with Read/Write off [`#386`](https://github.com/anatawa12/AvatarOptimizer/pull/386)
+
 ## [1.4.0-beta.1] - 2023-08-26
 ### Added
 - Support for Multi Frame BlendShapes [`#333`](https://github.com/anatawa12/AvatarOptimizer/pull/333)
@@ -623,7 +628,8 @@ This release is mistake.
 - Merge Bone
 - Clear Endpoint Position
 
-[Unreleased]: https://github.com/anatawa12/AvatarOptimizer/compare/v1.4.0-beta.1...HEAD
+[Unreleased]: https://github.com/anatawa12/AvatarOptimizer/compare/v1.4.0-rc.1...HEAD
+[1.4.0-rc.1]: https://github.com/anatawa12/AvatarOptimizer/compare/v1.4.0-beta.1...v1.4.0-rc.1
 [1.4.0-beta.1]: https://github.com/anatawa12/AvatarOptimizer/compare/v1.3.4...v1.4.0-beta.1
 [1.3.4]: https://github.com/anatawa12/AvatarOptimizer/compare/v1.3.3...v1.3.4
 [1.3.3]: https://github.com/anatawa12/AvatarOptimizer/compare/v1.3.2...v1.3.3
diff --git a/package.json b/package.json
index b2efb0fda..d4039b804 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.anatawa12.avatar-optimizer",
-  "version": "1.4.0-beta.1",
+  "version": "1.4.0-rc.1",
   "unity": "2019.4",
   "description": "Set of Anatawa12's Small Avatar Optimization Utilities",
   "displayName": "Anatawa12's AvatarOptimizer",